Applied Managerial
Decision-Making
Company W is testing a sales
software. Its sales force of 500 people is divided into four regions:
Northeast, Southeast, Central, and West. Each sales person is expected to sell
the same amount of products. During the last 3 months, only half of the sales
representatives in each region were given the software program to help them
manage their contacts.
The VP of Sales at WidgeCorp,
who is comfortable with statistics, wants to know the possible null and
alternative hypotheses for a nonparametric test on this data using the
chi-square distribution. A nonparametric test is used on data that are
qualitative or categorical, such as gender, age group, region, and color. It is
used when it does not make sense to look at the mean of such variables.
